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What is vitamin B12 deficiency?
Vitamin deficiencies can cause a number of health problems that need to be addressed by a doctor.
According to the NHS website, vitamin B12 or B9 (folate) deficiency anaemia occurs “when a lack of vitamin B12 or folate causes the body to produce abnormally large red blood cells that cannot function properly”.
Red blood cells play a crucial role in keeping the body healthy, as these cells carry oxygen around the body via haemoglobin.
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